The ball mill is key equipment for re-crushing materials after being primarily crushed. Ball mills have been widely used in a wide range of materials such as cement, silicate, new type building materials, fireproofing, chemical fertilizer, black and non-ferrous metal and glass ceramics. Ball mills can realize dry type or wet type grinding for all kinds of ores and other grindable materials. After installation and inspection, trial operation without load should be carried out by skilled operators who strictly abide by safe operation rules.
The grate ball mill is a horizontal cylinder rotating device driven by gears with two silos. The materials get into the first silo through the feeding quill shaft from the feeding device spirally and evenly. There are ladder lining board and corrugated lining board in the first silo loaded with steel balls of different sizes. The centrifugal force produced by the rotation of the cylinder raises the steel balls to a certain height which then fall down, thus making thumping and abrading to the materials. After the coarse grinding in the first silo, the materials get into the second silo through the monolayer partition panel with flat lining board embedded with steel sections for further crushing. The powder of the materials will be discharged from the unloading board to finish the grinding work.
The ball mill is mainly composed of feeding mouth, discharging mouth, rotary part, transmission part (reducer, small transmission gears, engine and electric control device). The hollow shaft is made of cast steel and the interior lining board is changeable. The big rotary gear is fabricated with the casting gear hobbing. Ball mills operate smoothly and reliably.
|Model||Shell rotation speed
|Ф3200×4500||18||65||≤25||0.074-0.4||As per process conditions||630||137|
|Ф3600×4500||17||90||≤25||0.074-0.4||As per process conditions||850||158|
|Ф3600×6000||17||110||≤25||0.074-0.4||As per process conditions||1250||175|
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